Originally Posted by
LumberJack
Woops it was Kennedy, I was mixing up the announcement they took over one of ULA's launch complexes at Vandenberg.
The satellite is huge though, just looked it up and it's over 13,200 lbs. The other satellites are Arcturus (the shoe box at 48 lbs) and G-Space 1 (661 lbs).
Going direct to geostationary orbit is also part of the reason as the Heavy can launch 4x that amount to LEO.
I think the solar arrays are what's huge. The satellite is small. They said they reduced the size from 2 humans to about a shoe box. Just a guess though.